'Mount' in the Bible

When they drew near to Jerusalem, and came to Bethsphage, to the Mount of Olives, then Jesus sent two disciples,

As he sat on the Mount of Olives, the disciples came to him privately, saying, "Tell us, when will these things be? What is the sign of your coming, and of the end of the age?"

When they had sung a hymn, they went out to the Mount of Olives.